Connecting Using: sqlplus "/ as sysdba" Fails with ORA-12547 with Lower Ulimit Setting
(Doc ID 878375.1)
Last updated on NOVEMBER 27, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 to 10.2.0.4 [Release 8.1.7 to 10.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Solaris on SPARC (64-bit)
Sun Solaris SPARC (64-bit)
$sqlplus "/ as sysdba" fails with ORA-12547 .
You may have more than one database up and running under the same oracle home . When you try to bring up a database while connecting as "/ as sysdba" , the BEQ connection fails with ORA-12547 .
You might see significant delay after the sqlplus "/ as sysdba" is fired and before ORA/TNS-12547 occurs.
The problem still persists even after performing $relink all . No error/warning messages in the OS logs.
sqlnet client trace may show the following error stack :
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